I cleaned my Bushy M4 the other day and when I was finished I chambered a round. A few days later, a friend of mine wanted to look at something on my rifle. So I pulled it out and kicked the chambered round out and handed him the rifle. He said, "no, I want to see that round." So I gave it to him. He goes, "yep, it's doing the same thing to yours too." I looked at the round and noticed that the primer is dimpled. I reinserted the mag and chambered another round and then pulled it out and looked at it. Same thing...It doesn't look like it's enough to fire the round off, but what if???? Anyone else have this happen? Should I be concerned?

Don't listen to these guys, they are all crazy. You should send your rifle to me immediately for inspection. I can't tell you how long I will need to keep it, but be rest assured that you will be safe while it is in my possession. P.S., you should send me the ammo too, just in case it's also defective. I'll make sure it is disposed of properly.

It seems the force of the bolt slamming that round home also sends the firing pin along its path and will slightly ding the primer unless carbon build up is in there, but always make sure you point that thing in a safe direction if you chamber a round in case it touches a sensitive primer. And I am sure you do ...

Originally Posted By 2IDdoc:Don't listen to these guys, they are all crazy. You should send your rifle to me immediately for inspection. I can't tell you how long I will need to keep it, but be rest assured that you will be safe while it is in my possession. P.S., you should send me the ammo too, just in case it's also defective. I'll make sure it is disposed of properly.

Accidental discharges do occur (though very rare) because of the firing pin striking the primer on loading. The firing pin moves freely in the bolt and with enough force can ignite the round. As posted earlier that may be due to a soft primer. A solution that has been offered is NOT to charge the rifle with the barrel pointing down but rather horizontally or slightly inclined to reduce the impact on the primer. Others have used a lighter weight firing pin i.e. titanium. A very rare event but it does happen.